Heel-clamping machine



July 22 .1924. 1,502,014

F. E. BERTRAND HEEL CLAMPING MACHINE Filed Aug. 9, 1920 2 Sheets-Sheet lJul 22 1 924. I

F. E. BERTRAND HEEL CLAMPING MACHINE Filed Aug. 9, 1920 2 Sheets-Sheet 2Patented July 22, 1924.

1 UNITED STATES PATENT ornca- FREDERIG ,E. BERTRAND, OF LYNN,MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OFPATERSON,-NEW JERSEY, A CORPORATION OF JERSEY.

Application filed August 9,

To all whom it may concern:

Be it known that I, FREDERIG E. BER- TRAND, a citizen of the UnitedStates, residing at Lynn, in the county of Essex and State ofMassachusetts, have invented certain Improvements in Heel-ClampingMachines, of which the following description, inconnection with theaccompanying drawings, is a specification, like reference characters onthe drawings indicating like parts in the several figures.

This invention relates to heel clamping machines of the type which isadapted more especially for use in securing wood heels to shoes.

It has been customary, heretofore, to apply an adhesive to the wood heeland the heel seat of the shoe and then to clamp the heelto the shoe bymeans of an iron C clamp which is left on the shoe for a suflicientperiod of time. to allow the adhesive to set. For quantity productionthis necessitates a large number of bulky clamps and interposes a longinterval before other operations can be performed on the shoe. Accordingto a superior method described and claimed in United States applicationSerial No. 367,173, filed Mar. 19, 1920, on application of MauriceBresnahan, the heel may be fastened temporarily to the shoe by a screwwhich passes through a last on which the shoe is supported and entersthe heel. This screw takes the place of the large clamps previouslyreferred to and permits other operations to be performed on the shoewhile the adhesive sets.

It is an object'of this invention to provide, without sacrifice of otherutility, an improved device for clamping a shoe and heel together, aswhen boring the heel for the reception of the screw above referred to.In the illustrated embodiment, there is provided a support fora heel andfor a shoe on a last and means is provided to engage the front part ofthe cone of the last to force the shoe against the heel to receive atemporary fastening. In accordance with this feature, the shoe and heelare clamped together while in their normal upright gpc a sition and theclamp or jack is of a n i which leaves the greater part of the shoeunobstructed so that easy access is afforded for performing otheroperations. I

vent the post from turning.

HEEL-CLAMPING MACHINE.

1920. Serial 1%. 402,281.

Another object is to provide improved mechanism for preparing a heel forattachment to a shoe. In accordance with this feature, there is provideda last with a guide hole through the heel seat portion,

means to clamp together a heel and a shoe on the last, and a drillguided by the hole in the last for boring a hole in the heel to receivea fastening.

These and other features of the invention will appear from the followingdescription and accompanyin drawings of a preferred embodiment of theinvention, am. I

1, on an enlarged scale and partly in section;

Fig. 5 is a front elevation, partly broken away.

For supporting a shoe and a motor oper ated drill, the base or framework10 is provided with bosses 12'car'rying posts 14 and 16, the latterhaving a key.18 engaging a similar keyway in one of the bosses to presetscrew 20 is provided to ad'ust this post 16 vertically properly to a aptthe work for different operators. As-shown best in Fig. 5, there isprovided a heel support or cup having spaced arms 22 ofi'set at theirupper ends and joined by a curved arm 24 which may be provided with alayer or two of felt to avoid marring the heel with which it enga es.heel tread plate 26 which may also e provided with layers of felt toengage the tread face of a heel is mounted between the arms22and hasforked extremities 27 which loosely engage the arms. Depending from theplate 26 is a 30 through which passes a rod 28, there extending throughslots both in the arms 22 and in the serrated plates 32 and the rod maybe held in vertically adjusted position by means of serrated washers andclamp nuts 36. This mounting for the plate 26 allows it to rock slightlysince the forked extremities 27 fit the arms 22 ldos ely and the platemay also be adjusted vertlcally to .fit difierently shaped ordifierently sized heels.

To support the tread surface of a shoe a bracket 40 extends from thepost 16 and is provided near its extremity with a guide slot 42 in whichis vertically adjusted a stem 44 carrying at its upper end a shoe treadsupport 48. A set screw 46 may be used to clamp this stem in positionand a prong 50 may be provided on the tread support 48 which wlllprevent. lateral turning of the shoe when the screw 74 hereinafterreferred to is threaded into the heel. In Figs. 1 and 4 a shoe 52 andheel 54 are shown in position on the supports and a last 56 having ahole 58 through the cone and heel seat portion is shown 1n place in theshoe. This hole 58 through the last is to be associated with a drill 62for boring a hole 60 in the heel as will be described. The drill isconnected by a a flexible shaft 66 with a motor 64 mounted on the post14 and a sleeve 68 surrounding the drill is adapted to enter the opening58 in the last, this sleeve acting as a guide for the drill. A collar 70is adjustably secured to the sleeve 68 by means of a set screw and actsas a gage to co-operate with. the cone of the last to determine thedepth which the drill shall enter the heel. The motor and drill arecarried at a higher elevation than the last and the drill may be hung ona bracket secured to the post 14. This main tains it in a convenientposition for removal and insertion in the guide hole. The drill maybemanipulated by the handle 72 and when it is removed from the last ascrew 74 will be pushed through the hole in the last and turned into thehole 60 in the heel. If desired, a series of washers 76 may be placedbetween the last and the head of the screw to limit the inward movementof the screw and any suitable tool may be in erted in the eye 78 to turnthe screw.

To a downward extension 80 of the bracket 40 is fixed by means of a setscrew 84 a pivot rod 82 and surrounding the ends of the red are the hubs86 joined together by the bar 88 and carrying a pair of arms 90 whichstraddle the hollow post 16. To the end of the arms 90 are pivotallysecured the links 92 which are joined at their upper ends by the bar 94,this bar carrying a clamp member 96. This member preferably engages thefront portion of the cone of the last, leaving the rear portionunobstructed and it may be serrated if desired to prevent slipping. Thisposition of the member 96 also causes the links 92 to assume an inclinedposition so that one component of the clampn eoaorc --of the arms 90 asector-shaped bracket 110 provided with comparatively coarse teeth 112and these teeth can be engaged by one of a series of pawls 114 mountedon a pivot rod 116. This rod is secured in apertures of the post 16 andof a bracket 118 formed thereon and is held in place by a set screw 120.Suitable springs 122, surrounding the pivot rod 116 and engaging a pin124 on the post, are provided to hold the pawls in en-' gagement withthe teeth. The pawls 114 are made of unequal length in order thatcoarser teeth may be used on the ratchet and thus give greater strength.For releasing the pawls thereis pivoted on the stud 128 secured to thearms 22 a handle 130 carrying a pawl tripping projection 132 movableagainst the tails of the pawls to release them. When the clamping links92 are released they swing forwardly and are supported in the forkedends 138 of the'arms 136 fixedly secured to a shaft 134 by means of theset screw 140.

In the operation of this mechanism the heel and shoe to which anadhesive has been applied are placed on the supports as shownparticularly in Fig. 4. The bar 96 on the ends of the links 92 is thenswung rearwardly over the cone. of the last and the treadle depressed toforce the last engaging member 96 against the last. The clampingmechanism is locked in this position by the pawls, as has beendescribed, and then the operator inserts the drill 62 and sleeve 68 intothe aperture 58 of the last. The sleeve 68 serves as a guide for thedrill and when the boring movement .is completed the clamp 70 engagesthe last. Upon the removal of the drill the screw 74 is inserted, as hasbeen described. The operator then pushes down on the handle 130 andtrips the pawls 114. The spring 104 then raises the rod 100, arms 90,and links 92 the weight of the last engaging member96 swinging theselinks on their pivots and over the forepart of the shoe where the linksremain in engagement with the forked arms 136'. The shoe may then beremoved without waiting for the adhesive to set and since there are noprojecting members the shoe may go forward in the factory to have otheroperations performed.

IIaving thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. In a machine of the class described, a

frame, means rigidly secured to said frame for supporting a heel and ashoe on a last, a pair of links straddling the shoe and the heelsupporting means, and means to move the links to engage the last toclamp the shoe against the heel.

3. In a machine of the class described, a support for the tread faces ofboth a heel and a shoe, a rock member, and connections from the rockmember to the shoe including a work-engaging member carried by a pair oflinks to force the rear end of the shoe down against the heel.

4. In a machine of the class described, a

support for a heel and for a shoe mounted on a last, a rock member, apair of connected links pivoted to the rock member and adapted tostraddle the shoe and engage the last, and means to operate the rockmember to clamp the last and, shoe against the heel.

5. In a machine of the class described, a

, support for a heel and for a shoe on a last,

a pair of links straddling the shoe and the last, a stop mounted on thesupport to hold the links in shoe receiving position, and a rock memberfor actuating the links and being pivoted to the latter to allow them toswing over the shoe into engagement with the last.

6. A heel clamp comprising a jack provided with a device constructed andarranged to support the tread and side surfaces of a heel, a clampmember co-operating therewith and arranged to engage the cone of a last,and means for relatively moving said member and jack to clamp the heelto the heel seat of a shoe mounted on the last while the heel and lastare in their natural upright positions with a component of pressureagainst the part of said device which supports the side of the heel.

7. A wood heel clamp comprising a jack provided with a heel cup and asupport for the forward portion of the sole of a shoe, a clamp memberarranged to engage the cone of a last, and means for causing-relativemovement of sald clamp member and said heel cup to clamp a heelsupported by the heel cup to the heel seat of the shoe mounted on thelast with the shoe and last in their natural upright positions.

8. In a dev1ce of the class described, a

support for a heel and for a shoe on a last, a clamp comprising a memberto engage the forward portion of the cone of the last while leaving therear portion unobstructed to permit work to be performed thereon, andautomatic means to lift the clamp member from the cone of the last andcarry it over one end of the shoe.

9. In a machine of the class described, a 5' support for a heelcomprising members to engage spaced surfaces'thereof, a clamp to force ashoe against the heel and including a link at the side of the shoe,u'ieans to release the clamp, and automatic means .to

move the link to a position allowing removal of the shoe.

10. In a machine of the class described, a support for a heel, a clampto force a shoe against the heel and comprising a pair of links whichnormally straddle the rear of the shoe, and means to move the linksautomatically over the forepart of the shoe when the shoe is unclamped.

11. In a machine of the class described, a

support for a shoe mounted in upright positionon a last, a heel cuphaving a palr of arms straddling the heel, a top lift engaging plateslidable between the arms, and means to clamp the plate at differentpoints along the arms to provide for the support of heels of differentheights,

12. In a machine ofthe class described, a support for a shoe mounted inupright position on a last, a heel cup, a top lift engaging plateslidable on the heel cup, and means to clamp the plate in difierentpositions on the heel cup to provide for heels of different heights.

13. In a machine of the class described,

a support for a shoe mounted on a last in up right position, a .heel cuphaving a curved portion to engage the rear of the heel, a top liftengaging plate movable on the heel cup to engage different heels, meansto clamp the 1 plate in adjuste'r l' osition, and a last engaging clampto hold the last and shoe against the supported lieel.

14. In a machine of the class described,

a post having a support for a shoe on a last,

a heel cup having a pair of arms straddling the heel, a top 11ftengaging plate slidable between the arms, and means to clamp the plateat different points along the arms to provide for the support of heelsof different 12( heights.

'15. In a machine of the class described, a heel .support comprisingarms straddling a heel, a toplift.engaging plate slidable on the armsof, the heel support, means to clamp 12; the plate in differentpositions on the heel support to provide for heels of different helghts,and a (work engaging clamp to force a shoe against a heel in thesupport.

- 16. In' a machine of the ,class described, a 1g support for a shoe ona last, means to vary the position of the shoe support, a heel cuphaving a curved portion to engage the rear of the heel, a top liftengaging plate movable on the heel cup to engage different heels, meansto clamp the plate in adjusted position, and a last engaging clamp tohold the last and shoe against the supported heel.

17. In a machine of the class described, a support comprising a memberto engage the rear surface of a heel, a tread engaging plate slidablyand rockably mounted on the heel support, and means to clamp the platein different positions on the heel support to provide for differentheels.

18. In a machine of, the class described, a hollow post having asupport'for a heel and for a shoe, a rock member pivoted to the supportand having an arm, means to connect the arm with the shoe, an actuatingarm on the rock member and a rod within the hollow post to rock themember to clamp the shoe and heel together.

19. In a machine for attaching heels to shoes, a support for a heel andfor a shoe on a last, a link to engage the last, a rock member pivotedto the link, means to rock the member to clamp the shoe and heel, aratchet secured to the rock member and having coarse teeth, and aplurality of pawls of unequal length for engagement with a tooth to lockthe shoe and heel in clamped position.

20. In a machine of the class described, a hollow post having a supportfor a heel and a shoe, a rock member pivoted on the support and having apair of arms, links pivoted to the arms and straddling the shoe, a rockarm on the rock member and extending into the hollow support, and atreadle actu' ated rod connected to the rock arm for actuating the linksto clamp the shoe to the heel.

21. In a machine of the class described,

7 a framework, a hollow post on the framework and having a support for aheel and for a shoe on a last, a rock member pivoted to the support andhaving a pair of arms straddling the post, links to connect the armswith the last, an actuating arm on the rock member and a rod within thehollow post'to rock the member to clamp the shoe and heel together. 4

22. In a machine for attaching heels to shoes, a support for a heel andfor a shoe, a rock member pivoted to the support, connections from therock member to the shoe, means to rock the member to clamp the shoe andheel, a ratchet secured to the rock member and having coarse teeth, anda plurality of pawls of unequal length for engagement with a tooth tolock the shoe and heel in clamped position.

23. In a machine of the'class described, a hollow support having meansto hold a heel and a shoe on a last, a rock member 1,,eoaoac pivoted onthe support and having a pair of arms, links pivoted to the arms andstraddling the shoe, a rock arm on the, rock member and extending intothe hollow support, and a treadle actuated rod connected to the rock armfor actuating the links to clamp the last and shoe to the heel.

2 1. In a machine of'the class described, means for clamping in anupright position a heel to the heelseat of a shoe mounted upon a lastprovided with an approximately vertical hole through the rear portionthereof, and a boring tool constructed and arranged to be inserted byhand and to be guided by the hole through the rear portion of the lastto bore a hole through the heel seat portion of the shoe into the heel.v

25. In a machine of the class described, a jack provided with means forclamping a heel to the heel seat of a shoe mounted upon a last providedwith an approximately vertical hole through the rear portion thereof, aboring tool to be inserted manually in the hole to be guided thereby, amotor, and a flexible driving connection therefrom for operating saidboring tool to bore a hole through the heel seat portion of the shoeinto the heel.

26. In a machine of the class described, a last carrying a shoe andhaving a hole through the heel seat portion, a support for a heel, aclamp to hold the shoe against the heel, a drill having a supportingsleeve engaging the hole in the last to guide the drill and a gage onthe sleeve to limit the boring movement of the drill into the heel seat.

27. In a machine of the class described, a last carrying a shoe and:having a hole through the heel seat portion, means to clamp a heeltemporarily to the shoe in an upright position, a drill having a sleeveguided by the hole in the last, and means including a flexible drivingconnection to rotate the drill to bore a hole in the heel seat toreceive a fastening.

28. In a machine of the class described, a last having a guide holethrough the heel seat portion perpendicular to the tread surface of aheel thereon and at an acute angle to the heel seat, means to clamp aheelto the last by pressure against the tread and side surfaces of theheel in a-direction perpendicular to the seat surface of the last, and adrill guided by the hole through the heel seat of the last for boring ahole in the heel to receive a fastening.

29. In a machine of the class described, a last supported in uprightposition and having aguide hole through the heel seat portion, means toclamp a heel to the last, and a motor operated drill supported above thelast for insertion in the guide hole when borin the heel to receive afastening.

30, n a machine of the class described,

neoapm a framework having a pair of posts, a motor operated drillsupported at one elevation by one post, the other post having means toclamp a heel to a shoe on a last at a lower elevation, a last having aguide opening through the heel seat portion, and a means on the drill toengage the opening to guide-the drill in boring the heel.

81. In a machine of the class described, a framework having posts ofunequal length, ,a last supported in upright position on one post andhaving a guide hole through the heel seat portion, means to clamptogether a heel and a shoe on the last, and a motor operated drillmounted higher than the last on another post and adapted for guidedboring movement down through the hole in the last into the heel.

32. The combination of a heel support, a support for the forepart of ashoe, a last having a hole through the heel seat portion and a prong onone side of the forepart support to prevent turning of the shoe when ascrew is passed through the hole in the last and turned down into a holein the heel.

33. In a machine of the class described a support for a heel and for ashoe mounted on a last, there being a guide hole through the heel seatportion of the last and through the rear part of the cone of the last,means to engage the front portion of the cone of the last to clamp theshoe and heel together, and a drill constructed and arranged to beguided by the hole in the last when boring a hole in the heel.

34. In a machine of the class described, a support for a heel having aninclined seat portion and a support for a shoe on a last, and meansengaging the last and actin in a direction normal to the heel seat toclamp the shoe and heel together.

35. A heel-clamping device comprising, in combination, a support for ashoe to which a heel is to be clamped, a cup for th heel comprisingspaced arms havlngn tread-engaging plate secured between them and arear-surface engaging strap connecting said arms and provided with ayielding surface and a connection between said heel cup and said platepermitting relative tilting of the plate and strap in engaging andsupporting heels of different shapes, and means to impart relativemovement to the support and the cup to clamp the heel to the shoe.

36. A heel-clamp comprising, in combination, a support for the forepartof a shoe, a support for a last in the shoe, a heel supporti yokearranged to straddle a Louis hee on the heel-seat of the shoe and toengage its rear surface, a plate rigidly secured to the sides of saidyoke for engaging the tread face of the heel, and manual1y-operablemeans including a oneway clutch device for imparting relative movementof varying extent to said supports'for clamping the heel against theheelly-operable lever, and connections from said lever including aone-way clutch device for relatively moving the said members to clampthe heel against the heel-seat of the shoe under any desired pressureWithin the limits of the machine.

38. A heel-clamp comprising, in combination, a member to engage a last,a head including spaced members for engaging the tread andrear surfacesof a heel on a shoe on the lastand connections between said memberscomprising arms straddling the heel, a manually-operable lever, andconnections from said lever including a oneway ratchet device forrelatively moving the last-engaging member and the heel-engaging head toclamp the heel against the shoe with any desired pressure within thelimits of the machine.

39. A heel-clamp as defined b claim 38, in which the tread and rear surace enga ing members of the head are relatively a justable for heels ofdifferent sizes.

40. A heel clamp comprising, in combination, a support to engagedifferent surfaces of a Louis heel to hold it with its tread surfacedown, a pivotally-mounted U-sha ed member adapted to straddle a lasted s0e and to be rocked toward the support to press the heel-seat of theshoe against the top of heel, and means relatively to move said supportand said member to hold the shoe with its heel seat clamped against theheel.

41. A device for uselin making shoes comprising, in combination, spacedmembers to support a Louis heel right side up by engaging the tread andlateral surfaces thereof, and a manually-operable pressure deviceconstructed and arranged to press a last and shoe against the heel in amanner to afford convenient access to the rear top surface of the. last.

42. A device for use in passing a fastening through the heel-seat ofashoe into a heel pressed therea ainst through a perforation in a lastin t e shoecomprising, in combination, a member engagaing the heel,means for supporting the shoe in assembled relation with the heel, amember engagaing the last, manually-o erable means relatively to movesaid mem rs to press the last and the shoe and the heel together,

a bench, and a post slidably clamped in the bench for verticaladjustment and carrying said members and said a 413. llm a mine of theclass described, in comloihetiom, it support for a, heel and for e 0e ona, lest, there being a guide hole through the heel seet portion of the tis: end throh the cone of the-lest, mean for mgt It come of the lest to:m the shoe and heel together, as drill edh te to he projee through eeidhole em FREDERIC E. BERTRAND.

